Сравнение на методи

	Input-Output Analysis	Shift-Share Analysis	Social Accounting Matrix
Област	Икономика	Икономика	Икономика
Семейство	Process / pipeline	Process / pipeline	Process / pipeline
Година на възникване	1936	1960	1962
Създател	Wassily Leontief	Edgar S. Dunn (Daniel Creamer credited with early use)	Richard Stone; popularized by Graham Pyatt & Jeffery Round
Тип	Linear inter-industry accounting and impact model	Descriptive decomposition of regional growth	Comprehensive, square, double-entry accounting framework
Основополагащ източник	Leontief, W. W. (1936). Quantitative input and output relations in the economic system of the United States. The Review of Economics and Statistics, 18(3), 105–125.	Dunn, E. S. (1960). A statistical and analytical technique for regional analysis. Papers of the Regional Science Association, 6(1), 97–112.	Pyatt, G., & Round, J. I. (Eds.). (1985). Social Accounting Matrices: A Basis for Planning. Washington, DC: The World Bank. ISBN: 9780821305508
Други названия	Leontief Model, Inter-Industry Analysis, I-O Analysis, Input-Output Model	Shift-Share Decomposition, SSA, Esteban-Marquillas Shift-Share, Regional Shift-Share	SAM, Social Accounting Framework, SAM Multiplier Model
Свързани	4	3	3
Резюме	Input-output analysis is a quantitative framework for representing the interdependence between the industries of an economy, introduced by Wassily Leontief in 1936. It records the flows of goods and services between sectors in a transactions table, derives fixed technical coefficients describing how much each industry buys from every other industry per unit of output, and inverts the resulting linear system to trace how an exogenous change in final demand ripples through the entire production structure.	Shift-share analysis is a descriptive technique that decomposes the change in a regional variable — most often sectoral employment — into three additive components: the part attributable to overall national growth, the part attributable to the region's industry mix, and the part attributable to the region's own competitive performance. Formalized by Edgar Dunn in 1960, it answers whether a region grew because the national economy grew, because it specializes in fast-growing industries, or because its industries outperformed (or underperformed) their national counterparts.	A social accounting matrix (SAM) is a square, double-entry table that records all transactions among the production sectors, factors of production, institutions (households, firms, government), and the rest of the world in an economy for a given year. It extends the input-output table by closing the circular flow of income — connecting how value added becomes factor income, factor income becomes household income, and household income becomes demand — so that every account's receipts (its row) exactly equal its expenditures (its column).